Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nang mai » nang ma, nang tai, lang mai
mai khoa » tai khoa, may khoa, dai khoa
hanh doi » thanh doi, hanh noi, hang doi
te sach » toc sach
hieu va » lieu va, hieu qua
doi cua » dai cua, hoi cua
y nang » ky nang, ly nang, v nang
xuc va » tuc va, xac va
luc va » tuc va, loc va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y nang mai khoa. hieu va cac ((((xuc va) or (luc va))) or (duc va)) hanh doi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang mai khoa. hieu va cac ((((xuc va) OR (luc va))) OR (duc va)) hanh doi cua triet.
• Adding a wildcard symbol may retrieve word variants: te sach y nang mai khoa. hieu va cac ((((xuc va) or (luc va))) or (duc va)) hanh doi cua triet*.